“direct cost of books and periodicals”的概念、定义、翻译、参考文献-科学参考

单词	direct cost of books and periodicals
释义	direct cost of books and periodicals Encyclopedia 文学书刊直接成本释 direct cost of books and periodicals书刊直接成本可以直接计入某一书刊品种的生产成本。
随便看	radix of a number system radix peucedani radix point radix representation radix sileris radix sort Radix Stephaniae Cepharanthae radlux Rado Radom radome radome environment monitoring system Radom National Park Radon radon radon-220 radon-222 Radon and its daughter elements measuring instrument/emanometer Radon and Radon daughter elements survey Radon and Thoron analyzer Radon derivative radon exhalation monitor radon governance Radon integral radon isotope hydrogeology

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。